package com.cryptooj.project.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 *  Spring上下文获取 工具
 * */
@Component
public class SpringContextUtils implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringContextUtils.applicationContext = applicationContext;
    }

    /**
     *  通过名称获取 Bean
     * */
    public static Object getBean(String beanName) {
        return applicationContext.getBean(beanName);
    }

    /**
     *  通过 class 获取Bean
     * */
    public static <T> T getBean(Class<T> clazz) {
        return applicationContext.getBean(clazz);
    }

    /**
     *  通过 名称 + class 获取Bean
     * */
    public static <T> T getBean(String beanName, Class<T> clazz) {
        return applicationContext.getBean(beanName, clazz);
    }
}
